Funny David, I was there around the same period and there were many Saivaite Hindus around, as Aug was a dedicated month to Shiva and the usual crowd of Buddhists. I was there twice, once in the early morning where it was less busy around 630am and crowded again around the afternoon period.

There's one part in the vid where the boys were playing in open space and it also showed many bowls with what looked like water in it, water offerings?

It includes some stories of pilgrims over the centuries who have made the trip and the hundreds, perhaps thousands who died on the way. Such was their devotion, walking or traveling hundreds to thousands of miles /km for a chance to see the spot where Buddha attained enlightenment. It's pretty inspiring to not only walk in similar steps of the Buddha, Sariputra, etc, but also the thousands of pilgrims over the centuries.